Character mistake: Charlie asks Larry if he had witnessed the death of a star. Larry then replies, "It had already been dead for 2.2 million light-years." A light-year is a unit of distance and not time. One light-year describes the distance light travels in one year. (00:41:05)
Numb3rs (2005)
1 mistake in season 6 - chronological order
Starring: Judd Hirsch, David Krumholtz, Rob Morrow, Alimi Ballard
Amita Ramanujan: Charlie, where did you learn all this stuff about assassination?
Charlie Eppes: If I told you that I'd have to kill you.
Amita Ramanujan: Okay, seriously.
Charlie Eppes: Seriously.
Trivia: Judd Hirsch is an astro-physicist and can actually do the math Charlie does on the show. He caught the acting bug in school and chose that over physics.
Question: This question is about the mistake where a SWAT officer has a magazine backwards in his MP5. I know this would be impossible on a real weapon. But, how could it have happened in filming? Rubber cast weapon? Very badly worn prop weapon? Set armourer with a hammer and no clue?